126170799 has 4 divisors (see below), whose sum is σ = 168227736. Its totient is φ = 84113864.

The previous prime is 126170789. The next prime is 126170813. The reversal of 126170799 is 997071621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126170799 - 2⁸ = 126170543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126170799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126170749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21028464 + ... + 21028469.

It is an arithmetic number, because the mean of its divisors is an integer number (42056934).

Almost surely, 2^126170799 is an apocalyptic number.

126170799 is a deficient number, since it is larger than the sum of its proper divisors (42056937).

126170799 is an equidigital number, since it uses as much as digits as its factorization.

126170799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42056936.

The product of its (nonzero) digits is 47628, while the sum is 42.

The square root of 126170799 is about 11232.5775759618. The cubic root of 126170799 is about 501.5562166874.

The spelling of 126170799 in words is "one hundred twenty-six million, one hundred seventy thousand, seven hundred ninety-nine".